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Stop buying cartidges. You already know they're not the problem. The problem is in the circuit to the cartidge. Gently wipe the circuit ends then retry. If not, buy another printer that accepts the same cartidges. Don't waste the ones you buyed.
it is better to change the black cartige becaue there is the jam of the ink in black cartidge. or pick out the black cartidge and clean with soft paper in the place from where color is pour. then reinstall the cartidge. i hope it will ok. otherwise, change the cartidge. byee
This document explains the basics of installing or replacing the print cartridges. It is for a 5940 which is the same printer design, yours may look a bit different but I copied this from HP at the section for your printer so follow the instructions and you should be okay.
Insert the print cartridges
The printer shown below is the HP Deskjet 5940 series printer. Your printer might look slightly different.
Turn the printer on. The cartridge cradle will not move if the power is not on.
Open the printer cover.
Figure 1: Open the cover
Wait until the print cartridge cradle moves to the right side of the printer and is
idle and quiet.
you are replacing a print cartridge, press down on the print cartridge
to be replaced, and then slide it out of the print cartridge cradle. If
you are installing print cartridges for the first time, go to the next
Remove the new print cartridge from its packaging and carefully remove
the plastic tape. Hold the print cartridge so that the copper strips are on the
bottom and facing toward the printer.
Figure 2: Remove tape1 - Protective tape
Do not touch the print cartridge ink nozzles or copper contacts.
Touching these parts will result in clogs, ink failure, and bad electrical
connections. Do not remove the copper strips. They are required electrical
Slide the print cartridge at a slight upward angle into the cradle until the cartridge
snaps into place.
Figure 3: Install the print cartridge
Repeat steps 3-4 for the remaining print cartridge.
Close the printer cover.
The printer automatically prints a calibration page.
Original Page here: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00411520&lc=en&dlc=en&cc=us&product=445441&os=228&rule=27868&lang=en
try to check the level of ink..
do this step:
The print cartridge contacts may not be cleaned. Clean the print cartridge contacts as described below or, if necessary, replace the cartridges:
Open the printer top access door. The printer carriage will move to the center.
Remove the USB cable from the back of the printer.
Remove the print cartridges from the printer.
Unplug the power cord. (Do not press the Power button to turn off the printer).
Verify that the cartridge reference meets the specifications for the printer. Cartridge reference can be found in the User Guide.
Verify that the protective plastic tape has been removed from the print cartridge
Locate the copper circuit strip on the back of the cartridge.
Clean the copper circuit strip with a dry foam-rubber swab or a lint-free cloth.
Do not wipe the nozzle end of the cartridge or touch the nozzle plate.
note: do not used any glass cleaner coz it will cause the damage of the print cartidge
Reconnect the power cord to the printer.
Turn on the printer if it does not turn on automatically.
Insert the print cartridge into the cradle at a slight upward angle until a resistance is fallen.
Close the top access door. The printer carriage should move to the left.
If the printer light is on steady, perform a self test report as follows:
Press and hold the Power button, and then open and close the top cover four times.
Release the Power button.
If the printer light continues to blink, replace the print cartridge or cartridges one at a time.
You have either a clogged colour print head or a non-functioning print cartridge (only one colour working). If the printer has separate cartridges for different colours (and black) you can do a partial swap, replacing the ones that have failed, but start by running the command CLEAN PRINT HEADS from the printer options or controller panel, and watch for the quality to improve. You may have to clean the heads two or three times. If no change in the quality after two flushes, replace the cartridges with new ones.
Sounds like a corrupt driver, uninstall your printer (Start> Printers and Faxes on right column), select your printer icon, right click>Delete.
Disconnect your printer and re install drivers first, then reconnect printer when prompted.
If still not performing correctly suspect printer head carrier fault.